1. Ua ntej siv cov menyuam thav duab, koj yuav tsum ua tib zoo tshawb xyuas cov xwm txheej sab hauv thiab sab nraud ntawm qhov chaw ua haujlwm kom paub seb cov tsev sab nrauv lossis lwm cov qauv puas muaj kev cuam tshuam rau sab hauv tsev kub vuam thiab txiav, seb puas muaj cov khoom tawg thiab tawg hauv chav, thiab yog tias tsim nyog, xyuas cov pa roj hauv tsev. Kev kuaj thiab tshuaj xyuas, thiab tsuas yog tom qab lees paub kev nyab xeeb tuaj yeem nkag mus rau hauv kev ua haujlwm sab hauv.
2. Lub tshuab hluav taws xob Acetylene, lub tog raj kheej oxygen thiab lub tshuab hluav taws xob vuam yuav tsum tsis txhob muab tso rau hauv qhov kub vuam thiab txiav chav. Ua tib zoo xyuas cov kav dej oxyacetylene thiab vuam, seb lub teeb hluav taws xob puas tawg, tiv thaiv cov roj oxyacetylene los ntawm kev sib sau hauv tsev thiab ua rau muaj kev sib tsoo tawg, tshem tawm vuam, txiav cov oxyacetylene pipeline thiab vuam, thiab nqa lub teeb taws tawm ntawm chav tsev. Thiab qhib txhua lub qhov rooj, qhov rais los yog li qub kom cua kom ntau li ntau tau thiab siv cov cua tshuab cua yog tias tsim nyog.
3. Thaum welding nrog cov menyuam thav duab, qhov chaw txiav yuav tsum tau khaws cia kom qhuav, thiab nruj me ntsis xyuas seb cov khoom siv tiv thaiv insulating puas ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb. Thaum ib tug welder ua hauj lwm nyob rau hauv lub thawv hlau, nws tsis raug tso cai tiv tauj lub taub hau, rov qab los yog qhov chaw uas tsis muaj rwb thaiv tsev nrog lub thawv hlau. Tag nrho cov teeb pom kev zoo siv cov teeb hluav taws xob tsawg.